Results 161 to 170 of about 355,849 (306)
Advanced Materials, EarlyView.Super‐steep subthreshold swing (SS) below 60 mV dec−1 is demonstrated in graphene/IGZO cold source transistor arrays. Linear density of states with Dirac cone in graphene suppressed the Boltzmann thermal tail, while high‐k HfO2 dielectric having small body factor enhanced gating efficiency, hereby further reducing SS. An average SS of ≈46.4 mV dec−1 is
Seyoung Oh +13 more
wiley +1 more source
Advanced Materials, EarlyView.The first room‐temperature, zero‐field observation of stable skyrmion–hopfion spin textures in EuS─Bi2Se3─EuS trilayers is reported. Combining Lorentz TEM imaging and micromagnetic modeling, the authors unveil how interfacial Dzyaloshinskii–Moriya interaction and geometric confinement stabilize these multidimensional topological states.
Ferhat Katmis +11 more
wiley +1 more source
Three classes of logarithmically completely monotonic functions involving gamma and psi functions [PDF]
, 2007 Feng Qi
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Transition of Néel‐Type and Bloch‐Néel Hybrid Skyrmion in a Metallic Multilayer Material System
Advanced Materials, EarlyView.This work demonstrated a framework for manipulating multiple skyrmion types in [Pt/Co/Cu]5 multilayers through bias‐driven thermal effects. Distinct Néel and hybrid skyrmion phases can be selectively stabilized, enabling binary encoding beyond chirality‐based schemes.
Binbin Wang +11 more
wiley +1 more source
Advanced Materials Interfaces, EarlyView.Plasma polymerized nanoparticles (PPNs) offer a solvent‐free route to functional nanocarriers with long‐lived radicals. This study establishes design principles for long‐term storage of PPNs, demonstrating that dry‐phase storage retains radical content, covalent reactivity, and bioactivity over extended periods. These findings advance the translational
Elmer Austria Jr. +11 more
wiley +1 more source
A completely monotonic function involving the gamma and trigamma functions
Kuwait Journal of Science, 2016 In the paper the author provides necessary and sufficient conditions on $a$ for the function\begin{equation*}\frac{1}{2}\ln(2\pi)-x+\biggl(x-\frac{1}{2}\biggr)\ln x-\ln\Gamma(x)+\frac1{12}{\psi'(x+a)}\end{equation*}and its negative to be completely ...
Feng Qi
doaj
Band Offsets from Angle‐Resolved Valence Band Photoemission Spectroscopy
Advanced Materials Interfaces, EarlyView.Soft X‐ray Angle‐Resolved Photoemission Spectroscopy (SX‐ARPES) is employed to quantify conduction band offsets at semiconductor surfaces and interfaces by fitting valence band photoemission spectra. This method surpasses traditional techniques, providing accurate results for InAs and InSb systems.
Procopios Constantinou +11 more
wiley +1 more source
On complete monotonicity of linear combination of finite psi functions
, 2019 Bai‐Ni Guo, Feng Qi
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